Global calibration of large-scale photonic integrated circuits
arXiv:2407.02207 · doi:10.1103/PhysRevApplied.22.054011
Abstract
The growing maturity of photonic integrated circuit (PIC) fabrication technology enables the high integration of an increasing number of optical components onto a single chip. With the incremental circuit complexity, the calibration of active phase shifters in a large-scale PIC becomes a crucially important issue. The traditional one-by-one calibration techniques encounter significant hurdles with the propagation of calibration errors, and achieving the decoupling of all phase shifters for independent calibration is not straightforward. To address this issue, we propose a global calibration approach for large-scale PIC. Our method utilizes a custom network to simultaneously learn the nonlinear phase-current relations for all thermo-optic phase shifters on the PIC by minimizing the negative likelihood of the measurement datasets. Moreover, the reflectivities of all static beam splitter components can also be synchronizedly extracted using this calibration method. As an example, a quantum walk PIC with a circuit depth of 12 is calibrated, and a programmable discrete-time quantum walk is experimentally demonstrated. These results will greatly benefit the applications of large-scale PICs in photonic quantum information processing.
arXiv comment10 pages, 7 figures
References in corpus (30)
- Integrated Photonic Quantum Technologies
- Universal Linear Optics
- Quantum walks of correlated particles
- Two-particle bosonic-fermionic quantum walk via 3D integrated photonics
- Large-scale silicon quantum photonics implementing arbitrary two-qubit processing
- Quantum transport simulations in a programmable nanophotonic processor
- Anderson localization of entangled photons in an integrated quantum walk
- Efficient, Compact and Low Loss Thermo-Optic Phase Shifter in Silicon
- Discrete single-photon quantum walks with tunable decoherence
- Generating, manipulating and measuring entanglement and mixture with a reconfigurable photonic circuit
- Experimental Two-dimensional Quantum Walk on a Photonic Chip
- Hardware error correction for programmable photonics
- A 12-mode Universal Photonic Processor for Quantum Information Processing
- Superfast maximum likelihood reconstruction for quantum tomography
- Fast Escape from Quantum Mazes in Integrated Photonics
- Experimental engineering of arbitrary qudit states with discrete-time quantum walks
- Measuring the winding number in a large-scale chiral quantum walk
- Low power reconfigurability and reduced crosstalk in integrated photonic circuits fabricated by femtosecond laser micromachining
- Quantum state engineering using one-dimensional discrete-time quantum walks
- Analyzing and generating multimode optical fields using self-configuring networks
- Quantum optics of lossy asymmetric beam splitters
- Transverse mode-encoded quantum gate on a silicon photonic chip
- Experimental property-reconstruction in a photonic quantum extreme learning machine
- Experimental certification of contextuality, coherence and dimension in a programmable universal photonic processor
- High-fidelity and polarization insensitive universal photonic processors fabricated by femtosecond laser writing
- Gradient-descent quantum process tomography by learning Kraus operators
- Two-photon tomography using on-chip quantum walks
- Regression of high dimensional angular momentum states of light
- Efficient learning of mixed-state tomography for photonic quantum walk
- Calibration and High Fidelity Measurement of a Quantum Photonic Chip